Typewriting machine



1,451,463 A. G. F. KUROWSKI TYPEWRITING MACHINE Apr. 10, 1923.

Filed Apr. 21, 1921 Patented Apr. 1O, 1923.

UNITED stares rarsn'r ,QFFIQQE,

ALFRED G. r. KUnowsKI, or BnooKLYn, New YORK, .assienon ro unnnnwoon'rxrn- WRITER COMPANY, or NEW roan, 1v. 2., A conrona'rronor DELAWARE.

TYPEWRI'IING MACHINE.

Application filed Apri121, 1921. Sam nonsense. I

To all whom it may concern: Be it known that I, ALF ED G. F. KUR W- sin, a citizen of the United States,residing in BrooklynBoro-ugh, in the countytof 5 Kings, city and" State of New York, have invented certain new and useful Improvements in TypewritingMachines, of which the following is a specification. I

This invention relatesto typewriting machines, more particularly to an adjustabletype-guide for guiding type-bars adjacent the printing point, and is here shown ap plied to an Underwood standard portable machine. It has beenusual, hitherto, to provide lugs beneath the type-blocks carried at the ends of the type-bars, these lugs operating in the slot of a guide-member mounted on the machine near the printing point. It has been found that with this arrangement the upper-case characters of the type-blocks occasionally tended'to blur, since these characters were at a considerable distance from the guiding means. I This was true, more especially, in portable machines, where the type-blocks carry three characters for printingin three case-shift positions. The present invention provides a lug above each typeblock, said lugs operatingin the slot of the guide-member which is mounted on the segment, the type-bars thus being guided at their extreme ends, and the tendency of the free ends to vibrate being eliminated.

Other features and advantages will hereinafter appear.

In the accompanying drawings, 7 Figure 1 is a vertical section of an Underwood standard portable machine,'as modified by the invention which is applied thereto, only the necessary co-operating elements of the machine being shown.

Figure 2 is a front elevation of the device as shown in Figurel.

Figure 3 is a plan view 0 shown in Figure 2.

Figure 4 is a view of the improved typeguide, detached from the machine.

In the drawings, thereis shown a platen 10 mounted upon an axleor shaft 11, these elements being mounted on a carriage, not shown, which travels from right. to left at letter-space intervals. Type-bars 12 are pivotally mounted in segment 13, fixed to the machine, and are swung by links 14 acthe device as tuated by keys, not shown, upwardly and rearwardly to strike against the platen, The

I t yp -blocks approach the jacent the platen.

type-bars carry type-blocks loattheir ends, i

and, in the type of themachine illustrated,

each type-block carries three characters 16, i

17 and 18"for printing against the platenjn three case-shift positions. i

platen, means are provided for guiding'them to the r I printingpoint with thelea st amount ofvibration, so that a clear imprint maybe ob-' tained against a work sheetwhich is being typed. In the present instance, this guide- Inember, indicated generally by the numeral 20, is fixed to segment 13 byscrews 21' passing through a flange .22, formed on said member, and comprises-two spaced, upwardly-extending b'ranchesf23 and 2d ad- The [space between branches 23 and 24 is a narrow slot 26-at the lower portion of the guide-member, this slot enlargin to form an opening 27 to accommodate t e type-blocks freely, and then diminishing again near the to'pbto form a guide-slot 28, just largeenough to accommodate short extensions 30, formed .at the outer ends of the type-bars beyond thetype-blocks, the slot 28 flaring forwardly to facilitate the entrance of the extensions hole in the slot 26 and provided with a conical head for spreading branches 23 and 24, the branches being locked in adjusted position by a flatheaded locking screw 32, threaded into holes in the branches 23 and 24 at right angles to screw 31. I

By the above-described mechanism, it will be apparent that the type-bars are guided at their lower ends in the segment 13 and at their extreme outer ends by the extensions 30 operating in guide-slot 28, as a result of which the typebars are held, when near the printing point, against vibration in any part of their length. I

Variations may be resorted to within the scope of the invention, and portions of the the segment to swing upward and rearward to theplaten, type-blocks fixed to the typebars near the ends of the latter, u-iding extensions on the ends of the type ars, a pair of uprights between which the type-blocks are adapted to pass on movement to the platen, guide-pieces offset toward each other,

one on each upright beyond the type-blocks,

for co-operation with said extensions on the type-bars, and means for adjusting the uprights toward and from each otherto regulate the space between the guide-pieces thereon; said uprights being spaced apart a sufliciently greater distance thanthe width of the type-blocks to'permit of such adjustbars near the ends of the latter, guiding extensions on the ends of the type-bars, a pair of uprights between which the type-blocks are adapted to pass on movement to the platen, guide-pieces ofl'set toward each other, one on each upright beyond the type-blocks, for co-operation with said extensions on the type-bars, and means, engaging the uprights below the path or the type-blocks, for adjusting the uprights toward and from each other to regulate the space between the gulde-pleces thereon; said uprights being spaced apart a sufiiciently greater distance than thewidth of the type-blocks to permit of such adjustment While nevertheless pro-- riding at all times free passageway therebetween for the type-blocks.

ALFRED e. r. KUnowsKi.

Witnesses:

MARION R. MCGAJEFREY, JENNIE P. THORNE. 

